Marmolada Glacier
The Marmolada Glacier is located on the mountain Marmolada
Marmolada is a mountain in northeastern Italy and the highest mountain of the Dolomites ....

 in the district of Trentino in the Veneto
Veneto is one of the 20 regions of Italy. Its population is about 5 million, ranking 5th in Italy.Veneto had been for more than a millennium an independent state, the Republic of Venice, until it was eventually annexed by Italy in 1866 after brief Austrian and French rule...

 region, Italy. It is the only glacier of the Dolomites section of the Alps. During World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

, the front line between Austrian and Italian forces ran over Marmolada, and Austrian soldiers built quarters in glacier tunnels, forming an "ice city" of considerable size. A WWI museum, Museo della Grande Guerra in Marmolada, is located in the valley below the glacier.
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